23 lines
468 B
C
23 lines
468 B
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright 2012 Freescale Semiconductor, Inc.
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*/
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#include <linux/err.h>
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#include <linux/io.h>
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#include <linux/jiffies.h>
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#include <linux/spinlock.h>
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#include "clk.h"
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DEFINE_SPINLOCK(mxs_lock);
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int mxs_clk_wait(void __iomem *reg, u8 shift)
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{
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unsigned long timeout = jiffies + msecs_to_jiffies(10);
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while (readl_relaxed(reg) & (1 << shift))
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if (time_after(jiffies, timeout))
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return -ETIMEDOUT;
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return 0;
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}
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